connection.recv() timeout

[stvnkem]

Hello!

I am trying to connect to a console via SSH terminal server
When the server port does not have any console connected or the device is powered off the

connection.send(b"\n")
connection.recv(4096)

does not return any output, so the scrip gets stuck. How can I set a short timeout value?

 ssh.connect(term_serv_ip_address, port=term_serv_ssh_port, username=term_serv_user,
                        password=term_serv_passw)
            connection = ssh.invoke_shell()
            connection.send(b"\n")
            time.sleep(.5)

            # login
            output = connection.recv(4096).decode('utf-8')
            hostn = re.search(r'<(ipi-\w{3,4}\d{3,4}-r-al-\d{2})>', output)
            print(output)

[ghost]

Hi @stvnkem,

I think this example code might help with this issue. You can add a timeout argument when calling the connect() method to specify the timeout in seconds.

import socket
import paramiko

def main():

    #arbitrary connection settings for the purposes of demonstration
    ip = "10.0.99.1"
    username = "example username"
    password = "example password"
    port = 22

    client = paramiko.SSHClient()
    try:
        client.connect(ip, port, username, password, timeout=5)
    except socket.timeout: 
        print("Connection Timed out")
    print("complete")

main()

[zhangzzgit]

you can use '''.recv_ready() '''